[Bug 685590] [NEW] dovecot 1.2.9 not compatible with thunderbird

[AlainKnaff]

Public bug reported:

Lucid (LTS) ships with dovecot 1.2.9 by default.
When a user attempts to log in to dovecot using thunderbird, the following is logged, and thunderbird doesn't manage to get folder contents:

Dec  5 19:26:43 hal dovecot: imap-login: Login: user=<aknaff>, method=PLAIN, rip=87.240.204.33, lip=158.64.72.230, TLS
Dec  5 19:26:43 hal dovecot: IMAP(aknaff): Panic: file cmd-list.c: line 242 (ns_get_listed_prefix): assertion failed: (match == IMAP_MATCH_YES)
Dec  5 19:26:43 hal dovecot: IMAP(aknaff): Raw backtrace: /usr/lib/dovecot/imap(+0xaeb8a) [0x7f4447a8bb8a] -> /usr/lib/dovecot/imap(+0xaebf7) [0x7f4447a8bbf7] -> /usr/lib/dovecot/imap(+0xae238) [0x7f4447a8b238] -> /usr/lib/dovecot/imap(+0x249f0) [0x7f4447a019f0] -> /usr/lib/dovecot/imap(+0x24c7d) [0x7f4447a01c7d] -> /usr/lib/dovecot/imap(cmd_list_full+0x4c6) [0x7f4447a029f6] -> /usr/lib/dovecot/imap(+0x28fad) [0x7f4447a05fad] -> /usr/lib/dovecot/imap(+0x2908d) [0x7f4447a0608d] -> /usr/lib/dovecot/imap(client_handle_input+0x135) [0x7f4447a062c5] -> /usr/lib/dovecot/imap(client_input+0x5f) [0x7f4447a06baf] -> /usr/lib/dovecot/imap(io_loop_handler_run+0xbd) [0x7f4447a9408d] -> /usr/lib/dovecot/imap(io_loop_run+0x18) [0x7f4447a93478] -> /usr/lib/dovecot/imap(main+0x58e) [0x7f4447a0ec5e] -> /lib/libc.so.6(__libc_start_main+0xfd) [0x7f444704ac4d] -> /usr/lib/dovecot/imap(+0x21979) [0x7f44479fe979]
Dec  5 19:26:43 hal dovecot: dovecot: child 28850 (imap) killed with signal 6 (core dumps disabled)

Reverting back to 1.1.11 (from previous version) makes it work again.
Rolling forward to versions more recent than 1.2.9 (from maverick or natty) doesn't work due to dependencies.

The dovecot community seems to have known about this bug since December
2009, and apparently have a fix. Wouldn't it be appropriate to make a
version with this fix in available for lucid, which is an LTS version,
and not supposed to ship with such show-stopper bugs (makes dovecot
basically unusable, as a majority of users have thunderbird).

Thanks.

http://www.dovecot.org/list/dovecot/2009-December/045522.html

** Affects: dovecot (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/685590

Title:
  dovecot 1.2.9 not compatible with thunderbird